Approximately 39.26 feet is needed to enclose a circular pond with a diameter of 12. 5 feet.
What is the circumference of a circle?The circumference (from Latin circumference, meaning "carrying around") is the perimeter of a circle or ellipse in geometry. That is, the circumference would be the circle's arc length if it were finally opened and straightened out to a line segment. In general, the perimeter is the length of the curve around any closed figure. The circumference can also refer to the circle itself, i.e. the locus corresponding to a disk's edge. A sphere's circumference is the circumference, or length, of any of its great circles.To fin the circumference:
Formula: C = 2πrRadius = Diameter/2 = 12.5/2 = 6.25So,
C = 2πr= 2 · π · 6.25≈ 39.26991Therefore, approximately 39.26 feet is needed to enclose a circular pond with a diameter of 12. 5 feet.
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Point F is reflected over the y-axis to create F’. Use an ordered pair to name the location of F’, and determine the
distance between F and F’
DONT ANSWER UNLESS YOU KNOW IT!!!!! IM SCREWED IF I DONT GET THIS!!!! Also this is NOT a multiple choice it is a WRITING question don’t write a book but a few sentences. Thank you friends
Answer:
Reflection about the y-axis is according to the rule
(x,y)->(-x,y)
Therefore F(x,y) -> F'(-x,y)
The distance between F' and F is (-x,y)-(x,y)=-2x, or the positive distance is 2x.
Let f : [0,[infinity]) → r so that f′ is decreasing and positive. Show that the series sum f′(i) is convergent if and only if f is bounded
If the series sum f'(i) is convergent, then f is bounded.
To prove that the series sum f'(i) is convergent if and only if f is bounded, we need to show both directions of the implication.
First, let's assume that f is bounded. This means there exists a positive number M such that |f(x)| ≤ M for all x in the domain [0, ∞).
Since f′ is decreasing and positive, it implies that f' is bounded above by a positive constant. Let's denote this upper bound by K. Therefore, we have |f'(x)| ≤ K for all x in the domain [0, ∞).
Now, let's consider the series sum f'(i). We can write it as:
f'(0) + f'(1) + f'(2) + f'(3) + ...
Since f' is bounded above by K, we have |f'(i)| ≤ K for all i. Thus, we can use the comparison test to show that the series is convergent. The comparison test states that if a series |a(i)| is such that |a(i)| ≤ K for all i, then the series converges.
Therefore, if f is bounded, then the series sum f'(i) is convergent.
Now, let's prove the other direction. Assume that the series sum f'(i) is convergent. This means that the series has a finite sum, i.e.,
f'(0) + f'(1) + f'(2) + f'(3) + ... = C,
where C is a finite constant.
Now, consider the function F(x) = f(x) - Cx. Since f(x) is differentiable, F(x) is also differentiable, and we have F'(x) = f'(x) - C.
Since f' is decreasing and positive, F'(x) is decreasing. Moreover, since the series sum f'(i) is convergent, F'(x) must approach zero as x goes to infinity.
This implies that F(x) is bounded as x goes to infinity, and consequently, f(x) = F(x) + C is also bounded.
Therefore, if the series sum f'(i) is convergent, then f is bounded.
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Can someone help with my homework please I really need your help
Answer:
say how can I help you bro
Three numerical expressions that are equivalent to (0.0004) x (0.005)
Answer:
Numerical expression 1
\(\frac{4}{10000} * \frac{5}{1000} = \frac{20}{10000000} = \frac{1}{500000}\)
Numerical expression 2
\(\frac{1}{50000} = 0.2 * 10^{-4} = 2 * 10^{-5}\)
Numerical expression 3
\(1 : 50000\)
Step-by-step explanation:
Numerical expression 1
\(\frac{4}{10000} * \frac{5}{1000} = \frac{20}{10000000} = \frac{1}{500000}\)
Numerical expression 2
\(\frac{1}{50000} = 0.2 * 10^{-4} = 2 * 10^{-5}\)
Numerical expression 3
\(1 : 50000\)
suppose the matrix, , has eigenvectors , , and whose eigenvalues are , and respectively. then, using the same order, can be written in the form where
We can write A = PAP where 1 P= and A= where P is an invertible matrix that maps the null space of A to itself.
To find the matrix P, we need to solve the following system of linear equations:
λ_1 1 = 1
λ_2 (-4) 1 = 1
λ_3 (-1) 1 = 1
The eigenvalues are real and non-negative, so they can be written as λ = λ_1, λ_2, λ_3 = λ_1, -4, -1 respectively.
Using Cramer's rule, we have:
\(λ_1 * 1^T = 1 * 1^T = 1\)
\(λ_2 * (-4)^T = -4 * 1^T = -4\)
\(λ_3 * (-1)^T = (-1) * 1^T = -1\)
Multiplying the first and third equations, we get:
\(-λ_1 * λ_3 = -4 * (-1) = 4\)
Multiplying the second and third equations, we get:
\(-λ_2 * λ_3 = -4 * (-1) = 4\)
Subtracting the second equation from the first, we get:
\(λ_1^2 - λ_2^2 = 1^2 - (-4)^2 = 5\)
Multiplying the first and third equations, we get:
\(-λ_1 * λ_2 = -4 * (-1) = 4\)
Dividing the third equation by the second equation, we get:
\(-1/λ_2 = -1/λ_3\)
Taking the reciprocal of both sides, we get:λ_2 = λ_3
Substituting this into the second equation, we get:
-\(λ_1 * λ_3 = -4 * (-1) * λ_3 = -4\)
Simplifying, we get:
-4 = -4
This equation has no solution, so the matrix A cannot be written in the form A = PAP where 1 P= and A= Thus, the answer is no.
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Full Question: the matrix, A, has eigenvectors and whose eigenvalues are 1, –4 and – 1 respectively. Then, using the same order, A can be written in the form A = PAP where 1 P= and A=
4(2x-3) < 8(x+1)
is the inequality always, sometimes, or never true?
Step-by-step explanation:
=8x-12 > 8x+8
=x -(-4)
=x> 4
given: δabc is a right triangle. prove: a2 + b2 = c2
In a right triangle, the Pythagorean theorem states that the square of the length of the side opposite the right angle (side AB) plus the square of the length of the side adjacent to the right angle (side BC) is equal to the square of the length of the hypotenuse (side AC).
In a right triangle, one of the angles is a right angle, which measures 90 degrees. Let's label the sides of the triangle as follows: AB is the side opposite to the right angle, BC is the side adjacent to the right angle, and AC is the hypotenuse, which is the side opposite to the remaining acute angle.
According to the Pythagorean theorem, in any right triangle, the sum of the squares of the lengths of the two shorter sides is equal to the square of the length of the hypotenuse. Mathematically, it can be expressed as:
A\(B^{2}\) + B\(C^{2}\) = A\(C^{2}\)
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What is the probability that 5 hearts are chosen, if 7 cards are chosen from a well-shuffled deck of 52 playing cards?
a) 0.00000049
b) 0.00000026
c) 0.00712838
d) 0.00000962
e) 0.00000016
f) None of the above.
The probability that 5 hearts are chosen when 7 cards are drawn from a well-shuffled deck of 52 playing cards is option (d) 0.00000962.
Step 1: Determine the total number of ways to choose 7 cards from a deck of 52 playing cards, which can be calculated using the combination formula: C(52, 7) = 52! / (7! * (52 - 7)!), where "!" denotes the factorial.
Step 2: Determine the number of ways to choose 5 hearts from the deck. There are 13 hearts in a standard deck, so we can calculate the number of ways to choose 5 hearts from 13: C(13, 5) = 13! / (5! * (13 - 5)!).
Step 3: Calculate the probability by dividing the number of favorable outcomes (choosing 5 hearts) by the total number of possible outcomes (choosing 7 cards from the deck): P(5 hearts) = C(13, 5) / C(52, 7).
Step 4: Evaluate the probability numerically using a calculator or math software, and the result is approximately 0.00000962.
Therefore, the correct answer is option (d) 0.00000962.
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A marketing firm obtained random samples of 20 people in five regions of the country to investigate the level of interest in a new product. People in the sample were asked to rate their level of interest on a scale from 1 to 10, with 1 being the least amount of interest and 10 being the greatest. The histograms show the results for each region. The graph for which region displays data for level of interest with the least standard deviation?.
Without the histograms, there's no specific region as an answer. However, you can follow these steps to determine the region with the least standard deviation in level of interest based on the provided data.
To determine the region with the least standard deviation in level of interest, we need to analyze the histograms for each region. Standard deviation is a measure of how spread out the data is. The region with the least standard deviation will have data points that are more closely clustered around the mean (average) level of interest.
1. Examine the histograms for each region.
2. Look for the region where the data points are more tightly grouped around the mean level of interest. This indicates less variability and a smaller standard deviation.
3. Identify the region with the least standard deviation in level of interest.
To determine the region with the least standard deviation in the level of interest, examine the histograms for each region and identify the one where data points are tightly clustered around the mean level. Calculate the standard deviation for each region and select the region with the smallest value, indicating a more concentrated and less variable distribution of the level of interest.
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6(2t+9)<12t-1 what is the answer
Answer:
no solutions
Step-by-step explanation:
The inequality: 6(2t+9)<12t-1
First, use distributive property
12t+54<12t-1
Now, add 1 on both sides
12t+55<12t
Subtract 12t on both sides
55<0
This is incorrect, so there are no solutions.
During Marta's last youth league soccer game, the starting players for each team had varied heights. The following is a list of their heights in inches.
61, 59, 64, 67, 60, 63, 60, 58, 63, 58, 64, 65, 60, 64, 63, 59, 65, 58, 66, 59, 63, 56
What is the median height for a starting player on the two teams?
I got the first part but i dont onow how to get the other ones
The value of x for this problem is given as follows:
x = 5.
Hence the angle measures are given as follows:
m < CAB = 32º.m < FDE = 32º.How to obtain the value of x?
We have that angles A and D are congruent for this problem, meaning that they have the same measure.
Hence the value of x is obtained as follows:
7x - 3 = 5x + 7
2x = 10
x = 5.
Hence the angle measures are given as follows:
m < CAB = 7(5) - 3 = 35 - 3 = 32º.m < FDE = 5(5) + 7 = 32º.More can be learned about angle measures at https://brainly.com/question/25716982
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Consider this triangle.
use sin
sin(50) = x/6
sin(50) x 6 = x
x = ~4.5963
Students held a carnival to raise funds for the school. Adult tickets sold for $6 and children's tickets
sold for $3. A total of $384 was raised. If twice as many children attended the carnival as adults, how
many adults attended?
a. 16 adults
b. 64 adults
c. 32 adults
d. 12 adults
Answer: 16
Step-by-step explanation:
multiply 6 by the answers below until you get 1/3 of 384.
which mathematical property is shown here
8+-8=0
1 distributive property
2 inverse property
3 identity property of addition
what is -8(4k+2)=112
Answer:K= -4
Step-by-step explanation:
The bearing of a point P from a point Q is 155°. Determine the bearing of Q from P
Answer:
The bearing of Q from P is 335°
Step-by-step explanation:
The given bearing of point P from a point Q = 155°
The bearing of one point from another point is the measure of the angle in degrees of the direction of the line between the two points measured from the north
From the diagram drawn showing the bearing of point P from point Q, we have;
The alternate angle of the angle between the north direction and the line drawn from point P to point Q = 180° - 155° = 25°
Therefore, the bearing of point Q from point P = The angle at a point - The angle between the line from P to Q and a line pointing south direction
∴ The bearing of point Q from point P = 360° - 25° = 335°.
a body’s weight varies inversely with the square of its distance from the center of the earth; if a chicken weighs 12 pounds when it is 5,000 miles from the earth’s center, how much will the chicken weigh when it is 10,000 miles from the earth’s center ?
The chicken will weigh 3 pounds when it is 10,000 miles from the earth's center.
There are two types of proportions.
1) Direct Proportion - shows the direct relationship between two quantities. It can be represented by the equation y = kx. As one quantity increases, the other quantity also increase.
2) Inverse Proportion - describes the indirect relationship between two quantities. It can be represented by the equation y = k/x. As one quantity increases, the other quantity decreases.
According to the problem, a body’s weight varies inversely with the square of its distance from the center of the earth.
y = k/x
let y = a body's weight
x = square of its distance from the center of the earth
Solving for the proportionality constant, k.
y = k/x
12 = k / (5000^2)
k = 12 x 25, 000, 000
k = 300, 000, 000
The equation for the relationship in the problem can now be represented by:
y = 300,000,000/x
where
y = a body's weight
x = square of its distance from the center of the earth
Evaluating the new equation where x = square of 10,000:
y = 300,000,000/x
y = 300,000,00/(100,000,000)
y = 3
Hence, the chicken will weigh 3 pounds when it is 10,000 miles from the earth's center.
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CAN SOMEONE PLEASE HELP ME !!!!
Answer:
k = 29
29 + 6 = 35
-3 + 5 = 2
35 + 2 = 37
In how many different ways can 10 students wear 10 hats, of each hat has a different color, and each student wears one hat
There are 3,628,800 different ways that 10 students can wear 10 hats, where each hat has a different color, and each student wears one hat.
The problem is related to permutation, in which order is important. In the problem, the 10 students are wearing 10 hats and each hat has a different color. So, we need to find out how many ways these students can wear these hats. For solving this type of problem, we use the permutation formula.
The formula is nPr = n!/(n-r)!.Here, n = total number of objects, r = number of objects taken at a time.In the given problem, the total number of objects is 10, and all objects are different.
The students are supposed to wear hats, and each student is wearing only one hat. So, we need to find the permutation of 10 students taken 10 at a time.
Using the permutation formula, we get,10P10=10!/0!=10×9×8×7×6×5×4×3×2×1=3,628,800.
Therefore, there are 3,628,800 different ways that 10 students can wear 10 hats, where each hat has a different color, and each student wears one hat.
Thus, we can conclude that the permutation formula can be used to find the number of ways when order is important, and the combination formula can be used to find the number of ways when order is not important. In the given problem, we found that there are 3,628,800 different ways that 10 students can wear 10 hats, where each hat has a different color, and each student wears one hat.
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ABCD is a trapezoid with midsegment EF, and segment lengths AB=9x + 3, CD = 4x+7, and EF = 5x + 13. segments AB and CD are parallel, find the value of X show work to recieve credit.
Using the trapezoid midsegment theorem, the value of x is: 16/3.
How to Apply the Trapezoid Midsegment Theorem?According to the trapezoid midsegment theorem, we have equation below that can be used to solve the value of x:
Length of EF = 1/2(AB + CD).
Given the following:
AB = 9x + 3
CD = 4x + 7
EF = 5x + 13
Therefore:
5x + 13 = 1/2(9x + 3 + 4x + 7)
5x + 13 = 1/2(13x + 10)
2(5x + 13) = 13x + 10
10x + 26 = 13x + 10
10x - 13x = -26 + 10
-3x = -16
-3x/-3 = -16/-3
x = 16/3
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IF THE RATIO OF TYPE O TO NON-TYPE O DONOR AT THE
BLOODS DRIVE WAS 37; 43 , HOW MANY DONORS WOULD BE
TYPE O OUT OF 300.
what type of ratio is this?
liquidity ratio
How would you set it up in words
11
I
How would you set it with numbers?
Solve
Answer:
139 donors
Step-by-step explanation:
So we have 37:43 as ratio. Lets add 37 and 43, giving us 80. So let's make the proportion, 37/80 = d/300. (d since d it stands for donors). Now let's cross multiply. 80d = 11100
d=11100/80
d=138.75
u dont just have part of a person, as that is manslaughter, you round to 139
. Order from least to greatest: 0.04, 0.0049, 0.1, 0.0096
Answer:
0.00096,0.0049,0.04,0.1
Step-by-step explanation:
The focus group techniques fall under the qualitative research
paradigm. With reference to the above statement examine the
qualitative research paradigm.
A qualitative research paradigm is a research approach that focuses on understanding and interpreting subjective experiences, meanings, and social phenomena.
It involves collecting and analyzing non-numerical data to gain insights into individuals' perspectives and the social context in which they exist. Focus group techniques are one of the methods used within the qualitative research paradigm to gather data through group discussions.
The qualitative research paradigm aims to explore and understand the complexity and nuances of human experiences, behaviors, and social phenomena. It recognizes the importance of context and seeks to generate rich and in-depth understandings rather than generalizable conclusions. Qualitative research methods involve collecting data through methods such as interviews, observations, and document analysis. The data collected is typically in the form of words, images, or other non-numerical formats. Researchers then analyze the data using various techniques, such as thematic analysis or grounded theory, to identify patterns, themes, and meanings.
Focus group techniques are one of the commonly used methods within the qualitative research paradigm. Focus groups involve bringing together a small group of participants who share common characteristics or experiences to engage in a facilitated discussion on a specific topic of interest. The group interaction allows participants to share their perspectives, experiences, and opinions while also influencing and being influenced by others in the group. This method provides rich qualitative data and allows researchers to explore group dynamics, collective meanings, and shared understandings.
Overall, the qualitative research paradigm and focus group techniques emphasize the importance of understanding subjective experiences, social interactions, and contextual factors to gain insights into human phenomena.
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7. What kind of sequence is this? 49, 64, 81, 100, ...
Answer:
an order of squares
Step-by-step explanation:
7^2 = 49
8^2 = 64
9^2 = 81
etc
True/False. the amount of rainfall in your state last month is an example of discrete data.
Answer: False
Step-by-step explanation:
Discrete means secret and that data is not discrete as it can be acess by anyone.
True. The amount of rainfall in your state last month is an example of discrete data.
Explanation:The answer to the question is True. The amount of rainfall in a state last month is an example of discrete data.
Discrete data is a type of data that can only take on specific values. In this case, the amount of rainfall can be measured in specific units, such as inches or millimeters, and cannot have values between those units.
Other examples of discrete data include the number of students in a classroom, the number of cars passing through a toll booth, or the number of coins in a piggy bank.
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Please help I’m in trouble end of the quarter is tomorrow
This is literally what I'm doing in school right now...
Answer: (A) TRUE
FILL THE BLANK. The average time a molecule spends in its reservoir is known as ________.
The average time a molecule spends in its reservoir is known as the residence time.
Residence time is an important concept in environmental science, particularly in the study of water quality and pollution. It refers to the average amount of time that a substance, such as a molecule or a pollutant, spends in a particular environment before it is either removed or transformed. For example, in a river, the residence time of a pollutant would be the amount of time it takes for that pollutant to be either broken down by natural processes or transported downstream to another location. By understanding residence time, scientists can better predict how pollutants will move through the environment and where they are likely to accumulate.
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ASAP PLEASE HELP IF RIGHT ANSWER WILL GIVE BRAINLIEST, 15 POINTS, AND 5 STAR OVERALL!!!! IF WRONG ANSWER OR INVALID WILL REPORT, PLEASE, PLEASE, PLEASE!!
Answer:
m = -3
Step-by-step explanation:
y = mx + b , and the slope is -3x, so m = -3
simple
Answer:
-3
Step-by-step explanation:
given that the equation for a linear function is y = mx + b
and m is the slope...
in the equation y = -3x - 5
-3 is the m, or slope.
since it's a whole number, it's /1 so::
-3 rise and 1 run.
In a certain country, income tax is assessed by people not having to pay a tax if they make $15,000 per year or less, people having to pay a 12% tax if they make over $15,000 but no more than $30,000, and people having to pay 18% tax if they make more than $30,000 per year. Find the piecewise function that represents this scenario.
Answer:
f(x) = x × 0.12 if 15,000 ≤ x ≤ 30,000
x × 0.18 if x ≥ 30,000
Step-by-step explanation:
I. When 12% is 12/100 = 0.12
and 18% is 18/100 = 0.18